Du, Jingyi (2010). Towards a Grammar of the Usen Dialect of the Barok language New Ireland, Papua New Guinea (Ph.D. thesis). La Trobe University.
hdl:1959.9/492969.
Du, Jingyi (2010). Towards a Grammar of the Usen Dialect of the Barok language New Ireland, Papua New Guinea (Ph.D. thesis). La Trobe University.
hdl:1959.9/492969.